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Accumulo, mail # user - Two locations for the same extent [SEC=UNOFFICIAL]


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RE: Two locations for the same extent [SEC=UNOFFICIAL]
Dickson, Matt MR 2013-08-16, 02:04
UNOFFICIAL

Thanks Keith for quick responses, that did the trick.

Did the fix for ticket ACCUMULO-1243 address this issue? and if so, which version includes it.

Thanks again,
Matt

________________________________
From: Keith Turner [mailto:[EMAIL PROTECTED]]
Sent: Friday, 16 August 2013 01:15
To: [EMAIL PROTECTED]
Subject: Re: Two locations for the same extent [SEC=UNOFFICIAL]

By default the root user does not have write permission to the metadata table, but root can grant itself write permission.
On Thu, Aug 15, 2013 at 2:19 AM, Dickson, Matt MR <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:

UNOFFICIAL

Thanks Keith, I've tried that using delete <row> <family> <qualifier>, but I get a MutationsRejectedException: # constraint violations : 1 security codes: [] # server errors ...

is there a different command I should use?

________________________________
From: Keith Turner [mailto:[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>]
Sent: Thursday, 15 August 2013 15:52

To: [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>
Subject: Re: Two locations for the same extent [SEC=UNOFFICIAL]

I guess the master can not scan the metadata table because an execption is thrown when it sees those two entries.  So you will probably need to remove the entries from the metadata table.
On Thu, Aug 15, 2013 at 1:12 AM, Dickson, Matt MR <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:

UNOFFICIAL

We've killed the servers and they are showing up dead in the Accumulo tablet server status screen.  Should the METADATA table entries for the extent change now that those servers are offline?  I'm still seeing the two extents mapping to the ip's of the dead servers.

Interestingly, when we go to the 'Tables' view on the console there are no statistics for any of the tables.
________________________________
From: Keith Turner [mailto:[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>]
Sent: Thursday, 15 August 2013 14:49

To: [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>
Subject: Re: Two locations for the same extent [SEC=UNOFFICIAL]

Killing the two tablet servers may clear it up.
On Thu, Aug 15, 2013 at 12:39 AM, Dickson, Matt MR <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:

UNOFFICIAL

We are running 1.5.1.  I found the duplicate definition in the !METADATA table, should it be deteled from there?

________________________________
From: Keith Turner [mailto:[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>]
Sent: Thursday, 15 August 2013 13:23
To: [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>
Subject: Re: Two locations for the same extent [SEC=UNOFFICIAL]

what version of Accumulo are you running?
On Wed, Aug 14, 2013 at 9:07 PM, Dickson, Matt MR <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote:

UNOFFICIAL

Hi,

We have had several tablet servers die recently while doing splits and since restarting we are getting a 'found two locations for the same extent ....' .  I noticed ACCUMULO-1243 addresses the bug that creates this, however I just wanted to know how I can fix the two locations for the extent.  Do I delete one of them or merge them?  How do I identify the extents?

Thanks in advance,
Matt Dickson